Lines Matching +full:rx +full:- +full:enable

1 .\" SPDX-License-Identifier: BSD-2-Clause
3 .\" Copyright (c) 2015-2024 Amazon.com, Inc. or its affiliates.
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58 The driver supports a range of ENA devices, is link-speed independent
62 Some ENA devices support SR-IOV.
63 This driver is used for both the SR-IOV Physical Function (PF) and Virtual
66 The ENA devices enable high speed and low overhead network traffic
67 processing by providing multiple Tx/Rx queue pairs (the maximum number
68 is advertised by the device via the Admin Queue), a dedicated MSI-X
69 interrupt vector per Tx/Rx queue pair, and CPU cacheline optimized
72 When RSS is enabled, each Tx/Rx queue pair is bound to a corresponding
77 Receive-side scaling (RSS) is supported for multi-core scaling.
86 Some of the ENA devices support a working mode called Low-latency
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102 1d0f:0ec2 - ENA PF
104 1d0f:1ec2 - ENA PF with LLQ support
106 1d0f:ec20 - ENA VF
108 1d0f:ec21 - ENA VF with LLQ support
113 driver's behavior can be changed using run-time or boot-time sysctl
115 The boot-time arguments can be set at the
119 The run-time arguments can be set using the
123 Boot-time tunables:
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126 Use 9k mbufs for the Rx descriptors.
128 If the node value is set to 1, 9k mbufs will be used for the Rx buffers.
131 Using 9k buffers for Rx can improve Rx throughput, but in low memory conditions
143 In some cases, the packet header can be bigger than this (for example -
155 Run-time tunables:
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169 0 - ENA_ERR  - Enable driver error messages and ena_com error logs.
171 1 - ENA_WARN - Enable logs for non-critical errors.
173 2 - ENA_INFO - Make the driver more verbose about its actions.
175 3 - ENA_DBG  - Enable debug logs.
178 NOTE: In order to enable logging on the Tx/Rx data path, driver must be compiled
182 To enable logs for errors and warnings, the following command should be used:
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189 Controls the number of IO queue pairs (Tx/Rx). As this call has to reallocate
190 the queues, it will reset the interface and restart all the queues - this means
201 To use only 2 Tx and Rx queues for the device ena1, the following command should
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207 Size of the Rx queue.
209 Controls the number of IO descriptors for each Rx queue.
210 The user may want to increase the Rx queue size if they observe a high number of
212 For performance reasons, the Rx queue size must be a power of 2.
221 To increase Rx ring size to 8K descriptors for the device ena0, the following
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231 The drbr is used as a multiple-producer, single-consumer lockless ring for
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285 The default is x:y key-pairs of indir_table_size length.
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328 .Bl -diag
359 .Bl -diag
364 .It ena%d: Failed to enable and set the admin interrupts
365 .It ena%d: Error, MSI-X is already enabled
366 .It ena%d: Failed to enable MSIX, vectors %d rc %d
367 .It ena%d: Not enough number of MSI-X allocated: %d
368 .It ena%d: Error with MSI-X enablement
388 .It ena%d: Enable MSI-X failed
390 Configuration of the MSI-X for Admin Queue failed.
400 .It ena%d: Unmapped RX DMA tag associations
403 Error occurred when trying to destroy RX/TX DMA tag.
412 The device will work with reduced performance because all RX packets will be
418 Error occurred during Low-latency Queue mode setup.
421 .It ena%d: failed to enable write combining.
429 .Bl -diag
468 .It ena%d: Enable MSI-X failed
477 .It ena%d: Allocation for Rx Queue %u failed
478 .It ena%d: Unable to create Rx DMA map for buffer %d
481 .It ena%d: Failed to create io RX queue[%d] rc: %d
482 .It ena%d: Failed to get RX queue handlers. RX queue num %d rc: %d
491 Initialization of the LRO for the RX ring failed.
492 .It ena%d: failed to alloc buffer for rx queue
493 .It ena%d: failed to add buffer for rx queue %d
494 .It ena%d: refilled rx qid %d with only %d mbufs (from %d)
496 Allocation of resources used on RX path failed.